What is the chemical name of marble?
Answer & explanation
Correct answer: option 4
The correct answer is 4. Calcium carbonate.
The chemical name of marble is calcium carbonate.
Marble is primarily composed of calcium carbonate (\(CaCO_3\)), which is a common mineral found in sedimentary rocks. When limestone undergoes metamorphism under conditions of high pressure and temperature, it recrystallizes to form marble. Therefore, marble is essentially a metamorphosed form of limestone, and both limestone and marble share the same chemical composition of calcium carbonate.